How to Make a PIN-Based Door Lock with Audio Feedback | DIY Door Lock System

In this video, we'll show you how to build a secure PIN-based door lock system with audio feedback using a 3x4 keypad, an Arduino , and the DFPlayer Mini for sound. This project is perfect for anyone looking to enhance home security with a DIY approach. You'll learn how to set up the hardware, program the lock system, and add audio cues for lock and unlock actions. Whether you're new to electronics or an experienced maker, this step-by-step guide will help you bring your smart door lock project to life!
I am using:-
Purchase from Amazon
1. Arduino UNO............... https://amzn.to/48ND6nv
2. L298n Motor driver..... https://amzn.to/3CzJzpZ
3. Df player mini............. https://amzn.to/4fzniXM
4. SD Card...................... https://amzn.to/3O48eWh
5. Jumper wires............. https://amzn.to/3AL7KRO
6. Bread Board............... https://amzn.to/4fJPOG4
7. Speaker...................... https://amzn.to/3Z35y1E
8. 4x3 Keypad................ https://amzn.to/4fKRNu2
9. Battery Holder........... https://amzn.to/4fmXRci
10. Batteries................. https://amzn.to/4fqlL6O
11. Door Lock Actuator.......https://amzn.to/3AL7VMY

Purchase from Ali Express
1. Arduino UNO............... https://s.click.aliexpress.com/e/_oEE...
2. L298n Motor driver..... https://s.click.aliexpress.com/e/_DEI...
3. Df player mini............. https://s.click.aliexpress.com/e/_DcQ...
4. SD Card...................... https://s.click.aliexpress.com/e/_Dcu...
5. Jumper wires............. https://s.click.aliexpress.com/e/_De1...
6. Bread Board............... https://s.click.aliexpress.com/e/_DDR...
7. Speaker...................... https://s.click.aliexpress.com/e/_Dde...
8. 4x3 Keypad................ https://s.click.aliexpress.com/e/_DC0...
9. Battery Holder........... https://s.click.aliexpress.com/e/_oB8...


Code:- https://drive.google.com/file/d/1fGkp...
Library:-
1. https://github.com/Chris--A/Keypad
2. https://github.com/DFRobot/DFPlayer-M...